Hi All,im jono ,and about three years ago bought a 1.3 m fish tank complete with large fishes,my brother is selling his 3 ft tank with four med size axolotals with a internal filter and im looking forward in doing some tank landscaping with rocks some plants also some tunnels ,maybe those glazed terracotta pipes.im a member of auckland fish club ,and some members have 4 to 5 plus tanks .since im going to pick up both the tank and axolotals at the same time.would be a good idea to put some water aside or even mix some water from the fish tank so i can cycle the water , the water is pretty good over here hardly any impureties.Thanks